11-03-2006 04:36 AM - edited 03-05-2019 12:36 PM
Hi all, I have just set up a cisco 1700 isdn router to dial to a remote location, for some reason when I try to ping the other end, it doesnt work, I have isdn debugging on but it doesnt even seem to raise the dialer interface, , from the debug I get the following, can anyone help, thanks :
2:00:38: ISDN BR0: RX <- RRp sapi = 0 tei = 64 nr = 0
02:00:163208757248: ISDN BR0: TX -> RRf sapi = 0 tei = 64 nr = 0
11-03-2006 04:55 AM
Hi carl ,
can you paste the config of the router.Try use the follwing debug and show commands for troubleshooting.
debug isdn q921 and debug isdnq931
sh isdn s bri0
sh isdn a
Thanks,
Satish
11-03-2006 05:32 AM
config, looks ok to me
interface FastEthernet0
ip address 10.1.1.30 255.0.0.0
speed auto
full-duplex
interface BRI0
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type basic-net3
!
interface Dialer1
description CONNECTION TO xxxx
ip unnumbered FastEthernet0
encapsulation ppp
dialer pool 1
dialer remote-name wooldaler1
dialer idle-timeout 30
dialer string xxxxxxxxxxxx
dialer-group 1
ppp authentication chap
ppp chap hostname wooldaler1
ppp chap password 7 112E3C2B3E312421
ip classless
ip route 172.21.247.0 255.255.255.255 Dialer1
access-list 1 permit 172.21.247.0 0.0.0.255
dialer-list 1 protocol ip list 1
here is the sh bri 0 command output
BRI0 is up, line protocol is up (spoofing)
Hardware is PQUICC BRI
MTU 1500 bytes, BW 64 Kbit, DLY 20000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, loopback not set
Last input 00:00:05, output never, output hang never
Last clearing of "show interface" counters 02:41:36
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/1/16 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
150 packets input, 721 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
122 packets output, 497 bytes, 0 underruns
0 output errors, 0 collisions, 2 interface resets
0 output buffer failures, 0 output buffers swapped out
5 carrier transitions
11-03-2006 06:45 AM
Hi carl ,
Can you change ip route 172.21.247.0 255.255.255.255 Dialer1 to ip route 172.21.247.0 255.255.255.0 Dialer1 and check the issue.
check whether you configured username xxxx password xxx in global config mode for remote end.
Thanks,
satish
11-03-2006 08:53 AM
Carl
the standard access-list you have configured looks wrong.
Standard ACL's are based on source address which in your case is the 10 network. Your acl has the destination network in.
Your local traffic will not be classed as interesting and therefore not bring up the line.
A rudimentary change like the one below hopefully will help
access-list 1 permit 10.0.0.0 0.255.255.255
you may want to bolt it down more than this..
hope I'm not way off track here
Stu
11-03-2006 06:13 AM
Carl:
From your config you may have a routing issue... What routing protocol are you using for this network? What does your routing table look like?
11-03-2006 06:54 AM
I there, sorry i actually wrote that config in, well the route anyway, it is a class C route /24. also the username and password is in global config, for the remote router, Do I need to put the hostname of this router in as the username ?
11-03-2006 07:45 AM
Hey Carl,
you have done a mistake..
under dialer interface dialer remote-name should be remote router name.
ppp chap host name should be the hostname of that router.
interface Dialer1
description CONNECTION TO xxxx
ip unnumbered FastEthernet0
encapsulation ppp
dialer pool 1
dialer remote-name wooldaler1 ....must be remote router name....it is wrong.change it....
dialer idle-timeout 30
dialer string xxxxxxxxxxxx
dialer-group 1
ppp authentication chap
ppp chap hostname wooldaler1 ....must be hostname of the router....
ppp chap password 7 112E3C2B3E312421
Thanks,
satish
11-06-2006 03:09 AM
Carl
(sorry put this post in the wrong place on Friday!!)
the standard access-list you have configured looks wrong.
Standard ACL's are based on source address which in your case is the 10 network. Your acl has the destination network in.
Your local traffic will not be classed as interesting and therefore not bring up the line.
A rudimentary change like the one below hopefully will help
access-list 1 permit 10.0.0.0 0.255.255.255
you may want to bolt it down more than this..
HTH
Stu
11-06-2006 04:32 AM
Also check your isdn interface with the "show isdn status" command , the interface should show "multiple frames established" , if not then you have a isdn connection problem .Should look like below in a idle state. Also check with your provider we always had to use SPIDS on the BRI interface .
ISDN BRI0 interface
dsl 0, interface ISDN Switchtype = basic-5ess
Layer 1 Status:
ACTIVE
Layer 2 Status:
TEI = 64, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
Layer 3 Status:
0 Active Layer 3 Call(s)
Activated dsl 0 CCBs = 0
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